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The Role OF Electric Field IN SOL Plasma
Author(s) -
Rozhansky V.
Publication year - 1994
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150340209
Subject(s) - divertor , plasma , electric field , perpendicular , electron temperature , atomic physics , magnetic field , materials science , electron , tokamak , physics , condensed matter physics , nuclear physics , geometry , mathematics , quantum mechanics
A natural electric field in SOL plasma is discussed. It is shown that the potential difference between the relatively hot plasma in SOL and cold plasma near the divertor plates is of order of 2Teh/e, where Teh is the hot plasma temperature. The radial dependence of electron temperature produces the outward directed positive electric field perpendicular to the magnetic surfaces and poloidal E×B drifts.